Threaded-barrel FN 509 for suppressed competition and tactical use. Optics-ready, extended controls, and suppressor height sights. USPSA Carry Optics legal. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 24 Year introduced: 2018, USA/Belgium Weight: 28.5 oz Overall length: 7.8" Status: Active Intended use: Competition, Service